Vent air from the oil separator tank
WARNING
Escaping oil mist is damaging to health.
➤ Do not direct the maintenance hose at a person while venting.
➤ Do not inhale the oil mist.
➤ Check that the oil separator tank pressure gauge reads 0 psig.
After automatic venting the pressure gauge does not read zero?
➤ Make sure that the shut-off valve is closed or that the compressed air system is vented to
atmosphere.
➤ With the shut-off valve closed, insert the male hose fitting
6
into the hose coupling
3
.
➤ Slowly open the shut-off valve
7
to release pressure.
➤ Withdraw the male hose fitting
6
and close the shut-off valve
7
.
➤ If manual venting does not bring the oil separator tank pressure gauge to 0 psig, call an
authorized KAESER Service representative.
Vent air manually from the air cooler
After shutting down the compressor and venting the oil separator tank, there is still pressure on
the machine from the compressed air system or in the section from the shut-off valve to the
minimum pressure/check valve.
1. With the shut-off valve closed, insert the male hose fitting
6
into the hose coupling
1
.
2. Slowly open the shut-off valve
7
to release pressure.
3. Withdraw the male hose fitting
6
and close the shut-off valve
7
.
10.13.2 Top up with cooling oil and test run
Topping up the Cooling Oil
A sticker on the oil separator tank gives the type of oil it contains.
CAUTION
The machine could be damaged by unsuitable oil
➤ Never mix different types of oil.
➤ Top up only with the same type of oil as already in the machine.
1. Unscrew the filler plug
4
slowly.
2. Top up to bring the oil to the correct level.
3. Replace the plug sealing ring if necessary and screw in the plug.
Start the machine and carry out a test run
1. Close all access doors; replace and secure all removable panels.
2. Open the user's shut-off valve between the machine and the compressed air system.
3. After about 10 minutes, check the oil level again and top up if necessary.
4. Switch off the machine and visually check for leaks.
10 Maintenance
10.13 Topping up the Cooling Oil
66
Service manual Screw compressor
Aircenter SX 3/7.5 SIGMA CONTROL BASIC
Number: 9_6945 01USE
